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Climate Change
- Long-term climate change
- Greenland and Antarctic ice
cores from ice sheetsare the
best evidence for long term.
- East Antarctic core shows the
climate of the last 800,000
years.
- Bubbles in the ice contain atmospheric
CO2 and the ice preserves oxygen
isotopes.
- Greenland and Antarctic ice
cores from ice sheetsare the
best evidence for long term.
- Key Terms
- Climate Change - any long term trend or
shift in climate detected by a sustained shift
in the average value for any climatic event.
- Thermohaline circulation - System of
surface and deep water ocean currents
driven by temperature and salinity
differences between areas of the ocean.
- Little Ice Age (1400-1850) - A
cool period in Europe. Many
Alpine glaciers advanced.
- Thermal expansion - Increased
volume of the seas due to higher water
temperature. Causes sea level rise.
- Climate forcing - Any mechanism that
alters the global energy balance and
'forces' the climate to change in response.
e.g.change in Earth's orbit or axis
- Climate Change - any long term trend or
shift in climate detected by a sustained shift
in the average value for any climatic event.
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